Small Passive Home Subwoofers Ranked (Under 30 lbs)

This page ranks 2 compact passive subwoofers weighing under 30 lbs. Passive subwoofers require a separate amplifier or AV receiver. All subwoofers have computed CEA-2010-A scores and are ranked by them with the best at the top.

Last updated: July 15, 2026

#1 Dayton Audio MKSX4 [Amazon]: $144.98

Dayton Audio MKSX4 ranking card

Pros: Four 4-inch drivers in a low-profile (under 8-inch) cabinet deliver 106.2dB CEA-2010-A average, the best output-per-dollar of any passive subwoofer tested.

Notes: low profile (<8in)

CEA-2010-A Average (40-80Hz)106.2 dB
Cabinet Colorblack
CountryUnited States
Dimensions16.0"H x 5.9"W x 14.0"D (406.4 x 149.9 x 355.6 mm)
Driver4" (102mm) driver
Driver(s)(4) 4 inch
Enclosureported, rear
Measurement SourceBrent Butterworth
Output SPL at 31.5 Hz78.7 dB
Output SPL at 40 Hz95.4 dB
Output SPL at 50 Hz106.8 dB
Output SPL at 63 Hz110.3 dB
Output SPL at 80 Hz112.3 dB
PassiveYes
Warranty5
Weight26.9 lbs / 12.2 kg

#2 BG Radia BGX-S6B: $189

BG Radia BGX-S6B ranking card

Pros: Six 4-inch drivers in a low-profile in-wall panel deliver 102.1dB CEA-2010-A average, a flush-mount alternative for rooms where a cabinet subwoofer won’t fit.

Notes: low profile (<8in)

CEA-2010-A Average (40-80Hz)102.1 dB (avg of 3/4 bands)
Dimensions14.0"H x 14.0"W x 3.75"D (355.6 x 355.6 x 95.2 mm)
DiscontinuedYes
Driver6" (152mm) driver
Driver(s)(6) 4 inch
Enclosurein-wall
Measurement SourceBrent Butterworth
Output SPL at 20 Hz82.3 dB
Output SPL at 25 Hz82.3 dB
Output SPL at 31.5 Hz82.3 dB
Output SPL at 40 Hz102.1 dB
Output SPL at 50 Hz102.1 dB
Output SPL at 63 Hz102.1 dB
PassiveYes
Weight16.1 lbs / 7.3 kg

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